Affable yet reclusive head of publicly-traded Swiss luxury group Richemont, which owns Cartier, Chloe, Dunhill and other premium brands. Weathering a U.S. slowdown in luxury spending with growing demand in key European and Asian markets. Reportedly negotiating a deal to invest $19 million in Saracens, the English rugby club. With family relatives, owns two of South African's best-known vineyards, Rupert & Rothschild and LOOmarins; also owns own of the country's most exclusive golf clubs.